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2 Sheets-Sheet li E. DEVONSHIRE. REVOLVING WATER PURIFIER.

Patented Oct. 28, 1890.

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REVOLVING WATER PURIFIER.

No. 439,589. Patented ont. 28, 1890@ 55mm@ @wh ATTORNEYS.

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UNITED STATES PATENT OFFICE.

EASTON DEVONSI-IIRE, OF LONDON, ENGLAND, ASSIGNOR TO THE REVOLVING PURIFIER COMPANY, LIMITED, OF SAME PLACE'.

REVOLVING WATER-PURIFIER.

SPECIFICATION forming part of Letters Patent No. 439,589, dated October 28, 1890.

Appiipaipii fue@ Apiii 25, 1890.

.To aZZ whom it may concern:

Be it known that I, EASTON DEVONSHIRE, a subject of the Queen of Great Britain, residing at London, county of Middlesex, England, have invented an Improved Revolving Vater-Puriiier, of which the following is a specification.

My invention relates to that class of waterpuriliers in which chemically-acting purifying materialsuch as spongy iron, metallic iron in a divided state, or other substance-is agitated and air and water simultaneously passed through the same.

The object of my invention is to provide means for introducing and distributing air and water through the purifier, and for removing the water after it has been treated.

My invention consists in the arrangement of air and water passages in the revolving cylinder, as hereinafter described and claimed.

Figure l is alongitudinal section of a purifier with a portion broken away. Figs.2 and 3 are cross sections thereof, looking toward the right and left, respectively. Fig. 4: is a detail of the water-inlet, and Fig. 5 a detail of the water-outlet.

The cylinder l revolves on the stationary inlet and outlet pipes 2 3, as is ,usual in this class of apparatus. Around the inner periphery of the cylinder are formed a series of chambers or passage-ways 4, one-half of which are for air and one-half for water'. In the purifier illustrated there are twelve of these passages formed by partitions 5, which subtend segments of the cylinder; but they may consist of simple perforated tubes, as shown in the application, Serial No. 349,443, executed by me on January 28, 1890.

On the end of pipe 2 is a box or casing G, which is preferably extended also over the end of the air-pipe 7; but this pipe may have a separate box. The six pipes 10 communicate with the box 6, and the six alternate pipes 9 communicate with the extension there of, and these pipes communicate with the water and air passages above described. In the upper side of pipe 2 in line with the bore of pipes 10 is a hole or slot, the preferable length or extent of which is indicated in Fig. 4, where the slot is shown as being in the upper part of the tube and of sufficient Serial No. 349,444. (No model.)

extent to communicate with three pipes. A similar hole or slot is provided in the lower side of the air-pipe in line with the bore of pipes 9. one-sixth of the circumference of the pipe, and is so arranged that the air-pipe lwill always be in communication with one or two of the lower air-passages, in the same manner that the water-inlet pipe is always in communication with one or more of the upper passages. At the other end of the cylinder is a box l2 on the outlet-pipe having six radial pipes. The hole or slot 13 in the outlet pipe is diametrically opposite that in the inletpipe. In practice it is found advantageous to place the slots ll and 13 a little to one side of the central position, owing to the fact that the revolution of the cylinder carries the purifying material along and gives its surface an inclined position, as indicated by the line fy y in Fig. 2. If the cylinder is rotated in the direction of the hands of a watch, both slots should be moved forward in that direction. By this arrangement the water would be introduced through-the passages entirely above the purifying material, and will be removed through the passages entirely below the material. lll is an air-outlet. In Fig. l the shelves which are used to raise the purifying material are omitted for convenience of illustration.

The apparatus is used as follows: Water enters at 2 and passes through the upper pipes lO to the passages connected therewith, and along the same, and into the cylinder through the perforations. At the same time air is forced in at 7 and passes through the lower pipe or pipes 9 to the passages connected therewith, and rises through the purifying material and the water, and passes out of the cylinder at 14:. The water finds its way downward through the purifying material through the perforations to the waterpassages communicating with the lower pipes 8, and through slot 13 to the outlet-pipe.

After passing through this apparatus the water is preferably taken to an ordinary sand or other filter, or to settling-tanks, or both, and thence to the place of consumption.

Having thus described my invention, what I claim is-- This hole preferably takes in about IOO 1. The combination, in a puriiier, of a revolving cylinder with passages around its inner periphery, Water-pipes communicating with a portion of said passages, air-pipes communicating With the remainder of the passages at one end, and pipes communicating with the Water-passages at the other end and With the outlet, substantially as described.

2. The combination, in a purifier, of a revolving cylinder, air and Water passages around its inner periphery, Waterpipes communicating with each alternate passage at one end and With the inlet, and air-pipes communicating With the other passages, and pipes communicating with the Water-passages i at the opposite end and With the outlet, substantially as described.

3. The combination, in a purifier, of a revolving cylinder with passages around its inner periphery, Water-pipes communicating with a portion of said passages, air-pipes communicating With the remainder of the passages at one end, and Water-pipes communicating With the Water-passages at the opposite end and with the outlet, and means for closing the lower water-pipes at the inlet end and the upper pipes at the outlet end, and for closing the upper air-pipes, substantially as described.

4. The combination, in a purifier, of a revolving cylinder With passages around its inner periphery, pipes communicating with the water-inlet and with each alternate passage, air-pipes communicating with the other passages, and pipes communicating with the water passages and with the outlet, and means for closing the lower pipes at the inlet end and the upper pipes at the outlet end, substantially as described.

This specification signed and witnessed this Qlth day of February, 1890.

EASTON DEVONSHIRE. iVitnesses:

CHARLES M. CATLiN, D. H. DRIsooLL. 

